Published in
arXiv, 2017
DOI: 10.48550/arxiv.1706.08778
IOP Publishing, New Journal of Physics, 7(20), p. 073033, 2018
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Wavelength-dispersive spectroscopy in the hard x-ray regime of a heavy highly-charged ion: the 1s Lamb shift in hydrogen-like gold
Journal article published in 2018 by
T. Gassner,
M. Trassinelli 
,
R. Heb,
R. Heß,
U. Spillmann,
D. Banaś ,
K.-H. Blumenhagen,
F. Bosch,
C. Brandau,
W. Chen,
Chr-H.-R. Dimopoulou,
E. Förster,
R. E. Grisenti,
A. Gumberidze,
S. Hagmann
and other authors.
,
R. Heb,
R. Heß,
U. Spillmann,
D. Banaś ,
K.-H. Blumenhagen,
F. Bosch,
C. Brandau,
W. Chen,
Chr-H.-R. Dimopoulou,
E. Förster,
R. E. Grisenti,
A. Gumberidze,
S. Hagmann
and other authors.
Abstract
Accurate spectroscopy of highly charged high-Z ions in a storage ring is demonstrated to be feasible by the use of specially adapted crystal optics. The method has been applied for the measurement of the 1s Lamb shift in hydrogen-like gold (Au 78+) in a storage ring through spectroscopy of the Lyman x rays. This measurement represents the first result obtained for a high-Z element using high-resolution wavelength-dispersive spectroscopy in the hard x-ray regime, paving the way for sensitivity to higher-order QED effects.